Home / 51,051.56-70,457.36-30,907.94

Finding the Fourth Proportional to 51,051.56, 70,457.36 and 30,907.94

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Solution

The fourth proportional to 51,051.56, 70,457.36 and 30,907.94 is: 42,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,051.56 : 70,457.36 = 30,907.94 : x
  2. Step 2: Convert to fraction form
    51,051.56/70,457.36 = 30,907.94/x
  3. Step 3: Cross multiply
    51,051.56x = 70,457.36 × 30,907.94
  4. Step 4: Simplify right side
    51,051.56x = 2,177,691,348.61
  5. Step 5: Solve for x
    x = 2,177,691,348.61/51,051.56
  6. Step 6: Final answer
    x = 42,656.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.